Mushrooming bullet.



H. W. STARK'WEATHER. MUSHROOMING BULLET. APPLICATION FI-L'ED rape, 191a.

Patented June 3, 1 913.

J 5 a /O ff p irso s'rnrns PATENT osrir oE BEER"! W. STARKWEATHER, OFNEW HAVEN, CONNECTICUT, ASSIGNOR WIR- CHESTER REPEATIN G ARMS 00., OFNEW HAVEN, CONNECTICUT, A CORPORATION.

nusasoomns BULLET.

Specification of Letters Patent.

hpplicailoix filed February 6, 191a. fieria! in). 746,524,

To all whom it ntay concern:

Be it known that I, HENRY W; STARK- wnA'r-msn, J citizenof' the UnitedStates, residing at New Hnven inthe county of New Haven and State ofConnecticut, have invented a new and useful Improvement in MushroomingBullets; and I do hereby de- Clare the "following, when taken incomics-- tion' with the accompanying drnwings'and.

the characters of reference marked thereon, to be a fulL-clear,anclcxact descriptionof the same, and which said drawings consti-' oncewith my invention.

into port of this application, and represent, in

' drawn sheet-metal jacket of the bullet shall consists in a mushroominginclose the soft-metal slug so that bullets will not be deformed inhandling, nor when functioning in the magazine of the gun.

The object of my present iuvention'is to combine the advantages offull-jncketeii and semi-jacketed bullets and to produce a hullei whichwill readily mushroom, and yet which will not he deforms in handling.

Viith these ends in View, mi? invention bull ht having a soft-metal slugformed in its hose with a concentric cavity, a sheet-metal jacketinclosiug the sin exo "it for an annular spacesurrounding t o sairi.cavity therein, and a hollow sheet metal cop inserted into the seidcavity so as to close the outer end thereof.

In carrying out my invention as herein shown, I employ it shortcylindrical slug 2 of lead or equivalent soft-metal having a relstivelydeep, concentric cyiindrlcnl cavity 3 in its forwuri'l end. This slug isinserted into n. drnwnshset metal jacket at of relatively hard metal,the side walls of which are slightly tapered as shown, thoughthis .orpoint of the bullet.

is not necessary. The said slugfl I 4 when combinod'as shown in Fig..2,--are subjected to an assembling operation in" Patented Junea, 191s,

which the open end of the jacket is' closed down upon the roundedforward end of the slug, the jacket and slug being proportioned inlength so that the edge of-the jacket will leave that portion of thesill ately surrounding the cavity 3 tereof' ex? posed in the form of aring or annulus .5.

The cavity 3 in the slug 2 isprov'ideil for I facilitating themushrooming thebul-lo't. To prevent this cavity from accumulating dirtand also from filling with air and impeding the progress of the bulletin its" fiight, and also to prevent the exp0se(l portion of the slugfrom being mutilated or deformed, I "insert a relativelysofbmetelcylindrical cap 5 into thecavityB, the outer end of the capbeingmacie sufficiently crownmg to conform to the general curvature ofthe outer end of the slug and jacket so as" to result in a symmet icalcurve for the nOSe sembliug operation, it will flow "outward to the endof the cap as shown in Fig. '2.

\Vhen' my improved bullet impinges upon- The said cap .6 is.

the object fired at, the crowning outerend i of the cap is the firstportion of the billlet to make contact with the ob'ect.. This portion ofthe said cap then crus "es in end= permits the entire outer end of toflatten or mushroom.

During the assembling operation aI conia the bullet cal cavity 8 isformed in. the butt-end of the bullet to assist in crowding the softtridge shell (not shown) in the usual monk I ner. v

I am aware that it. has been-proposed to form n concentric cavity in thenose-(lithe soft metal slug of a mushroomingjnllet and to construct thejacket of the hullt so as to expose a portion of the slug arouilft thesaid concavity, i a'lIILitlSO aware that 1t 1 s old to locate :1; mp iss ooncentric'cm-ity formed inthe nose of the slug of a mushposed andacap inserted into the cavity rooming bullet the jacketof which coversin the sing and surrounded by the said exonly a portion of the base ofthe bullet. posed annularportion of the slug.

I claim zin testiinonywhereof, I have signed this .5 x In a mushroomingbullet, the combination specification in the presence of two s'ub- 15with a soft-metal slug having a concentric scribing witnesses. cavity inits outer end, of a, jacket con- HENRY \V. STARKVVEATHER. st-ructed inlength with respect to the length Witnesses: of the slug so as to leavea concentric an- THOMAS C. JOHNSON, 0 nular portion of the nose of theslug. exl FRANK A. PAUL.

